220011022101251 has 2 divisors, whose sum is σ = 220011022101252. Its totient is φ = 220011022101250.

The previous prime is 220011022101217. The next prime is 220011022101317. The reversal of 220011022101251 is 152101220110022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220011022101251 is a prime.

It is not a weakly prime, because it can be changed into another prime (220011022101151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110005511050625 + 110005511050626.

It is an arithmetic number, because the mean of its divisors is an integer number (110005511050626).

Almost surely, 2^{220011022101251} is an apocalyptic number.

220011022101251 is a deficient number, since it is larger than the sum of its proper divisors (1).

220011022101251 is an equidigital number, since it uses as much as digits as its factorization.

220011022101251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 220011022101251 its reverse (152101220110022), we get a palindrome (372112242211273).

The spelling of 220011022101251 in words is "two hundred twenty trillion, eleven billion, twenty-two million, one hundred one thousand, two hundred fifty-one".